Digestive Review AP2 Word Scramble
|
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Question | Answer |
Functions of Digestive Sys | Digests food and absorbs products |
6 activities of system | Ingestion, mechanical digestion, propulsion, chemical digestion, absorption, defecation |
2 types of movement and definitions | peristalsis (pushes food) and segmentation (alternating bands of contraction that MIX food) |
Functions of salivary glands | cleanse the mouth, moisten/dissolve food, aid in formation of bolus, start chem digestion |
Number of teeth (deciduous and perm) | 20 and 32 |
3 types of salivary glands | parotid, sublignual, submandibular |
layers of muscle in stomach | longitudinal, circular, oblique |
Types of secretory cells in stomach | mucous, parietal, chief |
Function of mucous cells | secrete mucus |
function of parietal cells | secrete HCl and intrinsic factor (necessary to absorb B12) |
function of chief cells | secretes pepsinogen |
Phases of gastric secretion | cephalic, gastric, intestinal |
Cephalic Phase (excitatory/inhibitory events) | excit: sight/thought of food stimulates smell and taste receptors inhib: loss of appetitie, depression, decrease in PNS |
Purpose of cephalic phase | prepare stomach for digestion |
Gastric Phase (excitatory/inhibitory events) | excit: stretching stomach, activate chemoreceptors (inc pH, peptides) inhib: pH<2 or emotional upset that overrides PNS |
Chemicals released during Gastric Phase | Gastrin (from parietal cells), ACh (for production of more gastric juice), Histamine |
Intestinal Phase (excitatory/inhibitory events) | excit: low pH inhib: fatty, acidic, hypertonic chyme and stretching |
Define Plicae Circularis | circular folds that move food through sm. intesting in a corkscrew manner with villi |
Function of segmentation | brings food in to contact with wall of small intestine |
Function of villi | increase surface area of capillary beds |
Function of Lg. intestine | absorb H20 and water-soluble vitamins -NOT vital for life |
Define teniae coli | bands of longitudinal muscle |
Define Vermiform appendix | structure off of cecum with a small immune role |
Order of Chemical digestion for Carbs | Startsin mouth with salivary amylase, moves to stomach where amylase deactivates, moves to pancreatic amylase, transported into cap bed of sm. intestine, then to liver via hepatic portal system |
Pepsin | cleaves bonds of amino acids and digests proteins in stomach |
3 substances produced by sm. int for protein digestion | Trypsin, Chymotripsin, Carboxypeptidase (splits at carboxy end) |
Created by:
1159767578
Popular Anatomy sets